US3369802A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adjustable damped spring
Assignee: W H MINER Inc
•
Filing: 1966-02-02
•
Granted: 1968-02-20
•
Expires: 1986-02-02
Abstract
No abstract record available.
Inventors
- 👤 William D Wallace
- 👤 Robert L Carlson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 05:12
CPC Classifications
F; F16; F16F; F16F1/00; F16F1/36; F16F1/42; F16F1/44; F16F1/445; F16F7/00; F16F7/08; F16F2236/00; F16F2236/04; F16F2236/045
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
62 words
A DAMPED SPRING COMPRISING A HOUSING WITH A CHAMBER THEREIN, A PISTON RAM EXTENDING OUTWARDLY OF SAID CHAMBER FOR RECEIVING IMPACT FORCES, PISTON HEAD ELEMENTS CARRIED AT THE END OF SAID PISTON RAM WITHIN SAID CHAMBER, THE OUTER CIRCUMFERENCE OF SAID PISTON HEAD ELEMENTS BEING SPACED FROM THE INTERIOR OF SAID CHAMBER TO DEFINE AN ORIFICE THEREBETWEEN, SAID PISTON HEAD ELEMENTS BEING
Claim 2
Dependent Claim
62 words
A DAMPED SPRING COMPRISING A HOUSING WITH A CHAMBER THEREIN, A PISTON RAM EXTENDING OUTWARDLY OF SAID CHAMBER FOR RECEIVING IMPACT FORCES, PISTON HEAD ELEMENTS CARRIED AT THE END OF SAID PISTON RAM WITHIN SAID CHAMBER, THE OUTER CIRCUMFERENCE OF SAID PISTON HEAD ELEMENTS BEING SPACED FROM THE INTERIOR OF SAID CHAMBER TO DEFINE AN ORIFICE THEREBETWEEN, SAID PISTON HEAD ELEMENTS BEING
References Cited (Backward Citations)
US2846211A
Cited
US2984478A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-02-19 | 1971-08-21 | 1972-02-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-02-19 | 1975-08-21 | 1976-02-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-02-19 | 1979-08-21 | 1980-02-20 | $7700.00 | Window Closed / Lapsed |